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Commit 64e8867b authored by Ian Molton's avatar Ian Molton Committed by Samuel Ortiz
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mfd: tmio_mmc hardware abstraction for CNF area 



This patch abstracts out the CNF area code from tmio_mmc which
is not present in all hardware that can use this driver. This
is required so that we can support non-toshiba based hardware.

ASIC3 support by Philipp Zabel

Signed-off-by: default avatarIan Molton <ian@mnementh.co.uk>
Signed-off-by: default avatarMagnus Damm <damm@opensource.se>
Signed-off-by: default avatarSamuel Ortiz <sameo@linux.intel.com>
parent 6f2af72a

drivers/mfd/Makefile

+3 −3
Original line number Diff line number Diff line
@@ -11,9 +11,9 @@ obj-$(CONFIG_HTC_PASIC3) += htc-pasic3.o 


obj-$(CONFIG_MFD_DM355EVM_MSP)	+= dm355evm_msp.o



obj-$(CONFIG_MFD_T7L66XB)	+= t7l66xb.o

obj-$(CONFIG_MFD_TC6387XB)	+= tc6387xb.o

obj-$(CONFIG_MFD_TC6393XB)	+= tc6393xb.o

obj-$(CONFIG_MFD_T7L66XB)	+= t7l66xb.o tmio_core.o

obj-$(CONFIG_MFD_TC6387XB)	+= tc6387xb.o tmio_core.o

obj-$(CONFIG_MFD_TC6393XB)	+= tc6393xb.o tmio_core.o



obj-$(CONFIG_MFD_WM8400)	+= wm8400-core.o

wm831x-objs			:= wm831x-core.o wm831x-irq.o wm831x-otp.o

drivers/mfd/asic3.c

+32 −8
Original line number Diff line number Diff line
@@ -80,6 +80,7 @@ struct asic3 { 
	u16 irq_bothedge[4];

	struct gpio_chip gpio;

	struct device *dev;

	void __iomem *tmio_cnf;



	struct asic3_clk clocks[ARRAY_SIZE(asic3_clk_init)];

};
@@ -685,8 +686,24 @@ static struct mfd_cell asic3_cell_ds1wm = { 
	.resources     = ds1wm_resources,

};



static void asic3_mmc_pwr(struct platform_device *pdev, int state)

{

	struct asic3 *asic = dev_get_drvdata(pdev->dev.parent);



	tmio_core_mmc_pwr(asic->tmio_cnf, 1 - asic->bus_shift, state);

}



static void asic3_mmc_clk_div(struct platform_device *pdev, int state)

{

	struct asic3 *asic = dev_get_drvdata(pdev->dev.parent);



	tmio_core_mmc_clk_div(asic->tmio_cnf, 1 - asic->bus_shift, state);

}



static struct tmio_mmc_data asic3_mmc_data = {

	.hclk           = 24576000,

	.set_pwr        = asic3_mmc_pwr,

	.set_clk_div    = asic3_mmc_clk_div,

};



static struct resource asic3_mmc_resources[] = {
@@ -695,11 +712,6 @@ static struct resource asic3_mmc_resources[] = { 
		.end   = ASIC3_SD_CTRL_BASE + 0x3ff,

		.flags = IORESOURCE_MEM,

	},

	{

		.start = ASIC3_SD_CONFIG_BASE,

		.end   = ASIC3_SD_CONFIG_BASE + 0x1ff,

		.flags = IORESOURCE_MEM,

	},

	{

		.start = 0,

		.end   = 0,
@@ -743,6 +755,10 @@ static int asic3_mmc_enable(struct platform_device *pdev) 
	asic3_set_register(asic, ASIC3_OFFSET(SDHWCTRL, SDCONF),

			   ASIC3_SDHWCTRL_SDPWR, 1);



	/* ASIC3_SD_CTRL_BASE assumes 32-bit addressing, TMIO is 16-bit */

	tmio_core_mmc_enable(asic->tmio_cnf, 1 - asic->bus_shift,

			     ASIC3_SD_CTRL_BASE >> 1);



	return 0;

}
@@ -797,10 +813,15 @@ static int __init asic3_mfd_probe(struct platform_device *pdev, 
	asic3_cell_ds1wm.data_size = sizeof(asic3_cell_ds1wm);



	/* MMC */

	asic->tmio_cnf = ioremap((ASIC3_SD_CONFIG_BASE >> asic->bus_shift) +

				 mem_sdio->start, 0x400 >> asic->bus_shift);

	if (!asic->tmio_cnf) {

		ret = -ENOMEM;

		dev_dbg(asic->dev, "Couldn't ioremap SD_CONFIG\n");

		goto out;

	}

	asic3_mmc_resources[0].start >>= asic->bus_shift;

	asic3_mmc_resources[0].end   >>= asic->bus_shift;

	asic3_mmc_resources[1].start >>= asic->bus_shift;

	asic3_mmc_resources[1].end   >>= asic->bus_shift;



	asic3_cell_mmc.platform_data = &asic3_cell_mmc;

	asic3_cell_mmc.data_size = sizeof(asic3_cell_mmc);
@@ -820,7 +841,10 @@ static int __init asic3_mfd_probe(struct platform_device *pdev, 


static void asic3_mfd_remove(struct platform_device *pdev)

{

	struct asic3 *asic = platform_get_drvdata(pdev);



	mfd_remove_devices(&pdev->dev);

	iounmap(asic->tmio_cnf);

}



/* Core */

drivers/mfd/t7l66xb.c

+37 −18
Original line number Diff line number Diff line
@@ -38,6 +38,19 @@ enum { 
	T7L66XB_CELL_MMC,

};



static const struct resource t7l66xb_mmc_resources[] = {

	{

		.start = 0x800,

		.end	= 0x9ff,

		.flags = IORESOURCE_MEM,

	},

	{

		.start = IRQ_T7L66XB_MMC,

		.end	= IRQ_T7L66XB_MMC,

		.flags = IORESOURCE_IRQ,

	},

};



#define SCR_REVID	0x08		/* b Revision ID	*/

#define SCR_IMR		0x42		/* b Interrupt Mask	*/

#define SCR_DEV_CTL	0xe0		/* b Device control	*/
@@ -83,6 +96,9 @@ static int t7l66xb_mmc_enable(struct platform_device *mmc) 


	spin_unlock_irqrestore(&t7l66xb->lock, flags);



	tmio_core_mmc_enable(t7l66xb->scr + 0x200, 0,

		t7l66xb_mmc_resources[0].start & 0xfffe);



	return 0;

}
@@ -106,28 +122,28 @@ static int t7l66xb_mmc_disable(struct platform_device *mmc) 
	return 0;

}



static void t7l66xb_mmc_pwr(struct platform_device *mmc, int state)

{

	struct platform_device *dev = to_platform_device(mmc->dev.parent);

	struct t7l66xb *t7l66xb = platform_get_drvdata(dev);



	tmio_core_mmc_pwr(t7l66xb->scr + 0x200, 0, state);

}



static void t7l66xb_mmc_clk_div(struct platform_device *mmc, int state)

{

	struct platform_device *dev = to_platform_device(mmc->dev.parent);

	struct t7l66xb *t7l66xb = platform_get_drvdata(dev);



	tmio_core_mmc_clk_div(t7l66xb->scr + 0x200, 0, state);

}



/*--------------------------------------------------------------------------*/



static struct tmio_mmc_data t7166xb_mmc_data = {

	.hclk = 24000000,

};



static const struct resource t7l66xb_mmc_resources[] = {

	{

		.start = 0x800,

		.end	= 0x9ff,

		.flags = IORESOURCE_MEM,

	},

	{

		.start = 0x200,

		.end	= 0x2ff,

		.flags = IORESOURCE_MEM,

	},

	{

		.start = IRQ_T7L66XB_MMC,

		.end	= IRQ_T7L66XB_MMC,

		.flags = IORESOURCE_IRQ,

	},

	.set_pwr = t7l66xb_mmc_pwr,

	.set_clk_div = t7l66xb_mmc_clk_div,

};



static const struct resource t7l66xb_nand_resources[] = {
@@ -282,6 +298,9 @@ static int t7l66xb_resume(struct platform_device *dev) 
	if (pdata && pdata->resume)

		pdata->resume(dev);



	tmio_core_mmc_enable(t7l66xb->scr + 0x200, 0,

		t7l66xb_mmc_resources[0].start & 0xfffe);



	return 0;

}

#else

drivers/mfd/tc6387xb.c

+88 −31
Original line number Diff line number Diff line
@@ -22,28 +22,52 @@ enum { 
	TC6387XB_CELL_MMC,

};



struct tc6387xb {

	void __iomem *scr;

	struct clk *clk32k;

	struct resource rscr;

};



static struct resource tc6387xb_mmc_resources[] = {

	{

		.start = 0x800,

		.end   = 0x9ff,

		.flags = IORESOURCE_MEM,

	},

	{

		.start = 0,

		.end   = 0,

		.flags = IORESOURCE_IRQ,

	},

};



/*--------------------------------------------------------------------------*/



#ifdef CONFIG_PM

static int tc6387xb_suspend(struct platform_device *dev, pm_message_t state)

{

	struct clk *clk32k = platform_get_drvdata(dev);

	struct tc6387xb *tc6387xb = platform_get_drvdata(dev);

	struct tc6387xb_platform_data *pdata = dev->dev.platform_data;



	if (pdata && pdata->suspend)

		pdata->suspend(dev);

	clk_disable(clk32k);

	clk_disable(tc6387xb->clk32k);



	return 0;

}



static int tc6387xb_resume(struct platform_device *dev)

{

	struct clk *clk32k = platform_get_drvdata(dev);

	struct tc6387xb *tc6387xb = platform_get_drvdata(dev);

	struct tc6387xb_platform_data *pdata = dev->dev.platform_data;



	clk_enable(clk32k);

	clk_enable(tc6387xb->clk32k);

	if (pdata && pdata->resume)

		pdata->resume(dev);



	tmio_core_mmc_resume(tc6387xb->scr + 0x200, 0,

		tc6387xb_mmc_resources[0].start & 0xfffe);



	return 0;

}

#else
@@ -53,12 +77,32 @@ static int tc6387xb_resume(struct platform_device *dev) 


/*--------------------------------------------------------------------------*/



static void tc6387xb_mmc_pwr(struct platform_device *mmc, int state)

{

	struct platform_device *dev = to_platform_device(mmc->dev.parent);

	struct tc6387xb *tc6387xb = platform_get_drvdata(dev);



	tmio_core_mmc_pwr(tc6387xb->scr + 0x200, 0, state);

}



static void tc6387xb_mmc_clk_div(struct platform_device *mmc, int state)

{

	struct platform_device *dev = to_platform_device(mmc->dev.parent);

	struct tc6387xb *tc6387xb = platform_get_drvdata(dev);



	tmio_core_mmc_clk_div(tc6387xb->scr + 0x200, 0, state);

}





static int tc6387xb_mmc_enable(struct platform_device *mmc)

{

	struct platform_device *dev      = to_platform_device(mmc->dev.parent);

	struct clk *clk32k = platform_get_drvdata(dev);

	struct tc6387xb *tc6387xb = platform_get_drvdata(dev);



	clk_enable(tc6387xb->clk32k);



	clk_enable(clk32k);

	tmio_core_mmc_enable(tc6387xb->scr + 0x200, 0,

		tc6387xb_mmc_resources[0].start & 0xfffe);



	return 0;

}
@@ -66,36 +110,20 @@ static int tc6387xb_mmc_enable(struct platform_device *mmc) 
static int tc6387xb_mmc_disable(struct platform_device *mmc)

{

	struct platform_device *dev      = to_platform_device(mmc->dev.parent);

	struct clk *clk32k = platform_get_drvdata(dev);

	struct tc6387xb *tc6387xb = platform_get_drvdata(dev);



	clk_disable(clk32k);

	clk_disable(tc6387xb->clk32k);



	return 0;

}



/*--------------------------------------------------------------------------*/



static struct tmio_mmc_data tc6387xb_mmc_data = {

	.hclk = 24000000,

	.set_pwr = tc6387xb_mmc_pwr,

	.set_clk_div = tc6387xb_mmc_clk_div,

};



static struct resource tc6387xb_mmc_resources[] = {

	{

		.start = 0x800,

		.end   = 0x9ff,

		.flags = IORESOURCE_MEM,

	},

	{

		.start = 0x200,

		.end   = 0x2ff,

		.flags = IORESOURCE_MEM,

	},

	{

		.start = 0,

		.end   = 0,

		.flags = IORESOURCE_IRQ,

	},

};

/*--------------------------------------------------------------------------*/



static struct mfd_cell tc6387xb_cells[] = {

	[TC6387XB_CELL_MMC] = {
@@ -111,8 +139,9 @@ static struct mfd_cell tc6387xb_cells[] = { 
static int tc6387xb_probe(struct platform_device *dev)

{

	struct tc6387xb_platform_data *pdata = dev->dev.platform_data;

	struct resource *iomem;

	struct resource *iomem, *rscr;

	struct clk *clk32k;

	struct tc6387xb *tc6387xb;

	int irq, ret;



	iomem = platform_get_resource(dev, IORESOURCE_MEM, 0);
@@ -120,18 +149,40 @@ static int tc6387xb_probe(struct platform_device *dev) 
		return -EINVAL;

	}



	tc6387xb = kzalloc(sizeof *tc6387xb, GFP_KERNEL);

	if (!tc6387xb)

		return -ENOMEM;



	ret  = platform_get_irq(dev, 0);

	if (ret >= 0)

		irq = ret;

	else

		goto err_resource;

		goto err_no_irq;



	clk32k = clk_get(&dev->dev, "CLK_CK32K");

	if (IS_ERR(clk32k)) {

		ret = PTR_ERR(clk32k);

		goto err_no_clk;

	}



	rscr = &tc6387xb->rscr;

	rscr->name = "tc6387xb-core";

	rscr->start = iomem->start;

	rscr->end = iomem->start + 0xff;

	rscr->flags = IORESOURCE_MEM;



	ret = request_resource(iomem, rscr);

	if (ret)

		goto err_resource;



	tc6387xb->scr = ioremap(rscr->start, rscr->end - rscr->start + 1);

	if (!tc6387xb->scr) {

		ret = -ENOMEM;

		goto err_ioremap;

	}

	platform_set_drvdata(dev, clk32k);



	tc6387xb->clk32k = clk32k;

	platform_set_drvdata(dev, tc6387xb);



	if (pdata && pdata->enable)

		pdata->enable(dev);
@@ -149,8 +200,13 @@ static int tc6387xb_probe(struct platform_device *dev) 
	if (!ret)

		return 0;



	clk_put(clk32k);

err_ioremap:

	release_resource(&tc6387xb->rscr);

err_resource:

	clk_put(clk32k);

err_no_clk:

err_no_irq:

	kfree(tc6387xb);

	return ret;

}
@@ -195,3 +251,4 @@ MODULE_DESCRIPTION("Toshiba TC6387XB core driver"); 
MODULE_LICENSE("GPL v2");

MODULE_AUTHOR("Ian Molton");

MODULE_ALIAS("platform:tc6387xb");

drivers/mfd/tc6393xb.c

+47 −9
Original line number Diff line number Diff line
@@ -136,10 +136,6 @@ static int tc6393xb_nand_enable(struct platform_device *nand) 
	return 0;

}



static struct tmio_mmc_data tc6393xb_mmc_data = {

	.hclk = 24000000,

};



static struct resource __devinitdata tc6393xb_nand_resources[] = {

	{

		.start	= 0x1000,
@@ -164,11 +160,6 @@ static struct resource __devinitdata tc6393xb_mmc_resources[] = { 
		.end	= 0x9ff,

		.flags	= IORESOURCE_MEM,

	},

	{

		.start	= 0x200,

		.end	= 0x2ff,

		.flags	= IORESOURCE_MEM,

	},

	{

		.start	= IRQ_TC6393_MMC,

		.end	= IRQ_TC6393_MMC,
@@ -346,6 +337,50 @@ int tc6393xb_lcd_mode(struct platform_device *fb, 
}

EXPORT_SYMBOL(tc6393xb_lcd_mode);



static int tc6393xb_mmc_enable(struct platform_device *mmc)

{

	struct platform_device *dev = to_platform_device(mmc->dev.parent);

	struct tc6393xb *tc6393xb = platform_get_drvdata(dev);



	tmio_core_mmc_enable(tc6393xb->scr + 0x200, 0,

		tc6393xb_mmc_resources[0].start & 0xfffe);



	return 0;

}



static int tc6393xb_mmc_resume(struct platform_device *mmc)

{

	struct platform_device *dev = to_platform_device(mmc->dev.parent);

	struct tc6393xb *tc6393xb = platform_get_drvdata(dev);



	tmio_core_mmc_resume(tc6393xb->scr + 0x200, 0,

		tc6393xb_mmc_resources[0].start & 0xfffe);



	return 0;

}



static void tc6393xb_mmc_pwr(struct platform_device *mmc, int state)

{

	struct platform_device *dev = to_platform_device(mmc->dev.parent);

	struct tc6393xb *tc6393xb = platform_get_drvdata(dev);



	tmio_core_mmc_pwr(tc6393xb->scr + 0x200, 0, state);

}



static void tc6393xb_mmc_clk_div(struct platform_device *mmc, int state)

{

	struct platform_device *dev = to_platform_device(mmc->dev.parent);

	struct tc6393xb *tc6393xb = platform_get_drvdata(dev);



	tmio_core_mmc_clk_div(tc6393xb->scr + 0x200, 0, state);

}



static struct tmio_mmc_data tc6393xb_mmc_data = {

	.hclk = 24000000,

	.set_pwr = tc6393xb_mmc_pwr,

	.set_clk_div = tc6393xb_mmc_clk_div,

};



static struct mfd_cell __devinitdata tc6393xb_cells[] = {

	[TC6393XB_CELL_NAND] = {

		.name = "tmio-nand",
@@ -355,6 +390,8 @@ static struct mfd_cell __devinitdata tc6393xb_cells[] = { 
	},

	[TC6393XB_CELL_MMC] = {

		.name = "tmio-mmc",

		.enable = tc6393xb_mmc_enable,

		.resume = tc6393xb_mmc_resume,

		.driver_data = &tc6393xb_mmc_data,

		.num_resources = ARRAY_SIZE(tc6393xb_mmc_resources),

		.resources = tc6393xb_mmc_resources,
@@ -836,3 +873,4 @@ MODULE_LICENSE("GPL v2"); 
MODULE_AUTHOR("Ian Molton, Dmitry Baryshkov and Dirk Opfer");

MODULE_DESCRIPTION("tc6393xb Toshiba Mobile IO Controller");

MODULE_ALIAS("platform:tc6393xb");